Microwave vacuum-drying of organic materials

(19)

(11)

EP 2 526 776 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	31.07.2013 Bulletin 2013/31

(43)	Date of publication A2:
	28.11.2012 Bulletin 2012/48

(21)	Application number: 12178699.0

(22)	Date of filing: 25.10.2010

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International Patent Classification (IPC):

F26B 15/18^(2006.01)
F26B 5/04^(2006.01)
F26B 21/10^(2006.01)
A23L 3/54^(2006.01)
A23B 4/03^(2006.01)

F26B 3/347^(2006.01)
F26B 17/04^(2006.01)
A23L 3/01^(2006.01)
A23N 12/08^(2006.01)
A23B 7/02^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

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Priority:

18.01.2010 US 295835 P

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	10842790.7 / 2525675

(71)	Applicant: Enwave Corporation
	Vancouver, British Columbia V6E 3X2 (CA)

(72)	Inventors:
	Fu, Jun Port Coquitlam, British Columbia V3B 8B3 (CA) Durance, Timothy , D . Vancouver, Manitoba V6N 2X8 (CA) Yaghmaee, Parastoo Vancouver, British Columbia V6R 1G7 (CA)

(74)	Representative: Tirloni, Bartolomeo et al
	Bugnion S.p.A. Viale Lancetti, 17 20158 Milano 20158 Milano (IT)

(54)	Microwave vacuum-drying of organic materials

(57) An apparatus (20) for microwave vacuum-drying organic materials such as foods and bioactives has a plurality of microwave generators (50) actuated so as to cause interference between their respective microwave streams and evenly distribute the microwave energy across the vacuum chamber (34). The microwave-transparent window (36) in the chamber is arranged so the organic material to be dried is moved across it on a conveyor belt (60) and the microwave energy passing into the chamber (34) immediately encounters the organic materials, thus attenuating the energy and reducing arcing.

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